<template>
  <div class="app-container">
    <el-form :model="queryForm" ref="queryForm" :inline="true" v-show="showSearch">
      <el-form-item label="状态" prop="status">
        <el-select v-model="queryForm.status" placeholder="菜单状态" clearable size="small">
          <el-option
            v-for="item in statusOptions"
            :key="item.value"
            :label="item.label"
            :value="item.value">
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="cyan" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>


    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-has-perm="['system_menu:add']"
        >新增
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table
      v-loading="loading"
      :header-cell-style="thStyleFun"
      :data="menuList"
      row-key="id"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
    >
      <el-table-column prop="name" label="菜单名称" show-overflow-tooltip width="160"></el-table-column>
      <el-table-column prop="icon" label="图标" align="center" width="100">
        <template slot-scope="scope">
          <i :class="scope.row.icon"/>
        </template>
      </el-table-column>
      <el-table-column prop="type" label="类型" align="center" :formatter="typeFormatter"
                       show-overflow-tooltip></el-table-column>
      <el-table-column prop="orderNum" label="排序" align="center" width="60"></el-table-column>
      <el-table-column prop="perm" label="权限标识" align="center" show-overflow-tooltip></el-table-column>
      <el-table-column prop="router" label="组件路由" align="center" show-overflow-tooltip></el-table-column>
      <el-table-column prop="status" label="状态" align="center" :formatter="statusFormat" width="80"></el-table-column>
      <el-table-column prop="remark" label="备注" align="center" show-overflow-tooltip></el-table-column>
      <el-table-column prop="createTime" label="创建时间" align="center" show-overflow-tooltip></el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini"
                     type="detail"
                     icon="el-icon-view"
                     @click="handleUpdate(scope.row)"
                     v-has-perm="['system_menu:detail']"
          >详情
          </el-button>
          <el-button
            size="mini"
            type="add"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
            v-has-perm="['system_menu:add']"
          >新增
          </el-button>
          <el-button
            size="mini"
            type="del"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-has-perm="['system_menu:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改菜单对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="750px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="24">
            <el-form-item label="上级菜单">
              <treeselect
                v-model="form.pid"
                :options="menuOptions"
                :normalizer="$normalizer"
                :show-count="true"
                placeholder="选择上级菜单"
              />
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item label="菜单类型" prop="type">
              <el-radio-group v-model="form.type">
                <el-radio :label="0">目录</el-radio>
                <el-radio :label="1">菜单</el-radio>
                <el-radio :label="2">按钮</el-radio>
                <el-radio :label="3">权限</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :md="12">
            <el-form-item label="名称" prop="name">
              <el-input v-model="form.name" placeholder="请输入名称"/>
            </el-form-item>
          </el-col>
          <el-col :md="12">
            <el-form-item label="显示排序" prop="orderNum">
              <el-input-number v-model="form.orderNum" controls-position="right" :min="0"/>
            </el-form-item>
          </el-col>
          <el-col :md="12" v-if="form.type == '0'|| form.type == '1'">
            <el-form-item label="组件路由" prop="router">
              <el-input v-model="form.router" placeholder="请输入组件路由"/>
            </el-form-item>
          </el-col>
          <el-col :md="12" v-if="form.type == '0' || form.type == '1' ">
            <el-form-item label="菜单图标" prop="icon">
              <e-icon-picker v-model="form.icon" placeholder="选择图标"/>
            </el-form-item>
          </el-col>
          <el-col :md="12" v-if="form.type == '2'|| form.type == '3'">
            <el-form-item label="权限标识" prop="perm">
              <el-input v-model="form.perm" placeholder="请输入权限标识" maxlength="50"/>
            </el-form-item>
          </el-col>
          <el-col :md="12">
            <el-form-item label="备注">
              <el-input v-model="form.remark" placeholder="请输入备注" maxlength="50"/>
            </el-form-item>
          </el-col>
          <el-col :md="24">
            <el-form-item label="状态" prop="status">
              <el-radio-group v-model="form.status">
                <el-radio v-for="item in statusOptions"
                          :key="item.value" :label="item.value">
                  {{ item.label }}
                </el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <span v-has-perm="['system_menu:add']">
          <el-button type="primary" v-if="title=='添加菜单'" @click="submitForm">确 定
          </el-button>
        </span>
        <span v-has-perm="['system_menu:edit']">
          <el-button type="primary" v-if="title=='修改菜单'" @click="submitForm">确 定
          </el-button>
        </span>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {addMenu, delMenu, getMenuById, getTreeMenu, updateMenu} from "@/api/system/menu";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";
import {thStyleFun} from '@/utils/common'

export default {
  name: "Menu",
  components: {Treeselect},
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 菜单表格树数据
      menuList: [],
      // 菜单树选项
      menuOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 菜单状态
      statusOptions: [
        {value: 0, label: '启用'},
        {value: 1, label: '禁用'}
      ],
      // 查询参数
      queryForm: {
        name: undefined,
        visible: undefined
      },
      // 表单参数
      form: {
        id: undefined,
        pid: '0',
        name: undefined,
        type: 0,
        icon: undefined,
        router: undefined,
        perm: undefined,
        orderNum: 0,
        remark: undefined,
        status: 0
      },
      // 表单校验
      rules: {
        name: [
          {required: true, message: "菜单名称不能为空", trigger: "blur"}
        ],
        orderNum: [
          {required: true, message: "菜单顺序不能为空", trigger: "blur"}
        ],
        router: [
          {required: true, message: "路由地址不能为空", trigger: "blur"}
        ],
        perm: [
          {required: true, message: "权限标识不能为空", trigger: "blur"}
        ]
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询菜单列表 */
    getList() {
      this.loading = true;
      getTreeMenu(this.queryForm).then(({result: res}) => {
        this.menuList = res
        this.loading = false;
      });
    },
    /** 查询菜单下拉树结构 */
    getTreeselect() {
      getTreeMenu().then(({result: res}) => {
        this.menuOptions = [];
        const menu = {id: '0', name: '主类目', children: []};
        menu.children = res
        this.menuOptions.push(menu);
      })
    },
    // 菜单状态
    statusFormat(row, column) {
      return this.matchingLabel(this.statusOptions, row.status)
    },
    // 格式化权限标识
    typeFormatter(row) {
      if (row.type == '0') return '目录'
      else if (row.type == '1') return '菜单'
      else if (row.type == '2') return '按钮'
      else if (row.type == '3') return '权限'
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = this.$options.data().form
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    /** 新增按钮操作 */
    async handleAdd(row) {
      this.reset();
      await this.getTreeselect();
      if (row != null && row.id) {
        this.form.pid = row.id;
      }
      this.open = true;
      this.title = "添加菜单";
    },
    /** 修改按钮操作 */
    async handleUpdate(row) {
      this.reset();
      await this.getTreeselect();
      getMenuById(row.id).then(({result: res}) => {
        this.form = res
        this.open = true;
        this.title = "修改菜单";
      });
    },
    /** 提交按钮 */
    submitForm() {
      if (this.validForm("form")) {
        if (this.form.id != undefined) {
          updateMenu(this.form).then(res => {
            this.$message.success("修改成功");
            this.open = false;
            this.getList();
          })
        } else {
          addMenu(this.form).then(res => {
            this.$message.success("新增成功");
            this.open = false;
            this.getList();
          })
        }
      }
    },
    /** 删除按钮操作 */
    async handleDelete(row) {
      const confirm = await this.$confirm('是否确认删除名称为 " ' + row.name + ' " 的数据项?', "警告", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      }).catch(err => err)
      if (confirm != 'confirm') {
        return this.$message.info('取消操作')
      }
      delMenu(row.id).then((res) => {
        this.getList();
        this.$message.success("删除成功");
      })
    },
    // 表格居中 (html中使用需要先声明)
    thStyleFun,
  }
};
</script>
